Besta ED-139: English - English Electronic Dictionary Translator Oxford Advanced Learners Dictionary (8th Edition) - Containing approximately 58,000 words, phrases, and meanings and over 86,000 samples sentences with real voice pronunciation Collins Cobuild Advanced Learner's English Dictionary (New Digital Edition) - Containing approximately 40,000 words with real voice pronunciation Collins Thesaurus A-Z (2nd Edition) containing approximately 18,000 words with real voice pronunciation Collins Cobuild Idioms Dictionary (2nd Edition) - Containing over 4,000 entries, offering in-depth coverage of the most important idioms in English and provides additional information about their frequency, contexts, meanings, and usage Britannica Concise Encyclopedia containing close to 25,000 entries